KUALA LUMPUR, Aug 8 (Reuters) - Former Malaysian Prime Minister Najib Razak pleaded not guilty to three charges of money laundering brought against him on Wednesday.

Najib was earlier charged in court as part of an investigation into missing money at scandal-tainted state fund 1Malaysia Development Berhad (1MDB). (Reporting by Joseph Siapalan and Rozanna Latiff; writing by Praveen Menon; editing by Michael Perry)